论文标题
共鸣$ρ（1450）^+$和$ρ（1700）^+$ in $ b \ to d kk $衰减
Resonances $ρ(1450)^+$ and $ρ(1700)^+$ in $B \to D KK$ decays
论文作者
论文摘要
来自中间状态的Kaon对的贡献$ρ（1450）^+ $和$ρ（1700）^+ $在衰减中$ b^+ \ to \ bar {d}^0 k^+ \ bar {k}^0 $，$ b^0 $，$ b^0 \ to d^ - k^+ \ bar { \ bar {k}^0 $在扰动QCD分解方法中分析。这项工作中所有相关衰减的衰减幅度均由Kaon对排放的可分子化Feynman图所主导，而收费的$ρ$ MESON应该在相关的三体$ b $ b $ n衰减的$ kk $通道中非常重要。此外，这些准三体衰变是CKM最佳的，相关的分支比率预计为$ 10^{ - 5} $的顺序，这有可能通过实验来衡量。还表明，根据Belle提出的总三体分支分数，子过程$ρ（1450，1700）^+ \ to Kk $的贡献相当大。因此，ardes ardes $ b^+ \ to \ bar {d}^0 k^+ \ bar {k}^0 $，$ b^0 \ to d^ - k^+ \ bar {k}^0 $，$ b_s^0 \ to d_s^-k^-k^+ bar {k^+ bar {k}^0 $可以使用properties of properies and properies of properies and propaties of properies of properies of properies of properies of poltesties of poltesties。在LHCB和Belle-II实验中。
The contributions for the kaon pair from the intermediate states $ρ(1450)^+$ and $ρ(1700)^+$ in the decays $B^+ \to \bar{D}^0 K^+ \bar{K}^0$, $B^0 \to D^- K^+ \bar{K}^0$, and $B_s^0 \to D_s^-K^+ \bar{K}^0$ are analyzed within the perturbative QCD factorization approach. The decay amplitudes for all concerned decays in this work are dominated by the factorizable Feynman diagrams with the emission of the kaon pair, and the charged $ρ$ mesons should be of great importance in the $KK$ channel of the related three-body $B$ decays. Moreover, these quasi-two-body decays are CKM-favored, and the relevant branching ratios are predicted to be in the order of $10^{-5}$, which have the potential to be measured by experiments. It is also shown that the contributions of the subprocesses $ρ(1450, 1700)^+ \to KK$ for the three-body $B$ meson decays are considerable according to the total three-body branching fractions presented by Belle. Therefore, the decays $B^+ \to \bar{D}^0 K^+ \bar{K}^0$, $B^0 \to D^- K^+ \bar{K}^0$, and $B_s^0 \to D_s^-K^+ \bar{K}^0$ can be employed to study the properties of $ρ(1450)$ and $ρ(1700)$ in the LHCb and Belle-II experiments.
